Changed get product way in blocks with related products

[henryktews]

Description (*)

Thanks to this change, you can create a block in layout and set data product.

Manual testing scenarios (*)

1. Create block in layout
   $layout->createBlock('Magento\Catalog\Block\Product\ProductList\Upsell');
2. Set data product
   $layout->setData('product', $product)

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-cicd2]

All committers have signed the CLA.

[magento-engcom-team]

Hi @inpronet. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

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[VladimirZaets]

Hi @inpronet, thanks for collaboration, please, sign CLA, otherwise, we can't process your pull request

[tmotyl]

@VladimirZaets was CLA accepted? the merge check below is green, but the badge in the comment above is still yellow.

[magento-engcom-team]

Hi @sidolov, thank you for the review.
ENGCOM-3352 has been created to process this Pull Request

[magento-engcom-team]

@henryktews thank you for contributing. Please accept Community Contributors team invitation here to gain extended permissions for this repository.

[magento-engcom-team]

Hi @henryktews. Thank you for your contribution.
We will aim to release these changes as part of 2.3.1.
Please check the release notes for final confirmation.